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Messages - James Vella

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16
Could you set this to false in the coronaConverter.ms script in the Corona folder? Havent tried it myself but just a thought.

convertCoronaLegacyMtl = true,

17
[Max] Feature Requests / Re: The most wanted feature?
« on: 2024-02-20, 22:08:18 »
As for the website I'm no longer paying it, so its only behance, I'm working for another company and not doing freelance stuff these days.. you can check my behance here, https://www.behance.net/Arqrenderz1 I'm not the best but have a bit of experience in the field.
And here I'm working right now https://metricavisuals.com/projects

Why not just update your signature with your behance or current link?

Hi Tom G, thx for the response, now I'm a little baffled, isn't chaos scatter developed for the two engines ? Does the corona guys need to re write every single line of code when the vray team has it working ? Honest Question!

The company Chaos purchased Corona. Thats a business decision. From the programming side its completely different, its like comparing a Car to a Mushroom. Sure integrations can be made over time, and I'm sure thats the long term goal. But in order for the Mushroom get some wheels then you need to build it, same with the doors, engine, windows etc.

Its easier for one code base to understand what the other is doing by creating bridges along the way (what is a vray material, how do we convert it etc). But if you think you can just bridge something like the VFB (Frame Buffer) in a simple way, its not very simple at all. Everything needs to be rebuilt for each engine since nothing in vray is corona, and opposite. This is why there is a corona converter script, and other scripts that convert things, because the two engines are not the same, they have different ways of interpreting data, down to the most minute things. So yeah, Im not sure what understanding you have about how software works but this is like thinking if Windows purchased Apple tomorrow you could run all your windows software on Mac because Windows owns it. Not the case.

18
[Max] General Discussion / Re: Camera Film width setting
« on: 2024-02-16, 11:17:18 »
Yep, actually just realized this has been discussed previously. This covers the topic pretty well:

https://forum.corona-renderer.com/index.php?topic=39928.0

19
[Max] General Discussion / Re: Camera Film width setting
« on: 2024-02-16, 10:30:46 »
A good example of when you need to change this number is when your matching a backplate photograph taken with a full frame camera vs cropped. Full frame cameras are 36mm so its a good default, when you have a cropped sensor (usually cheaper camera), you need to change the factor. You can read about it here but in short:

The sensor is the physical rectangle in the center of your DSLR camera that reads the image from the lens. Generally, the larger the sensor, the more light and detail you are able to capture, and the higher your image quality will be. A full-frame camera has a sensor the size of a 35mm film camera (24mm x 36mm).


A crop sensor is smaller than the standard 35mm size, which introduces a crop factor to the photos these cameras take. This means that the edges of your photo will be cropped for a tighter field of view. For example, if you use a 50mm lens on a crop sensor camera with a multiplier effect of 1.5x, your effective focal length will be the same as a 75mm lens.

“Different camera bodies have different crop factors,” says photographer Whitney Whitehouse. “Canon has a 1.6x crop sensor, while Nikon, Sony, Sigma, and Pentax have a multiplier of 1.5x, and Panasonic and Olympus are 2x.”

20
Heres one comparing normal/bump.

21
Sure, but general heights are going to be 1-1.8m so why not just eye ball it until you have no distortion? It wont be that far off the horizon line for most HDRIs, unless the photographer did something strange.

22
Im not sure about your question but general rule for HDRI/EXR environment is that the horizon is the center point.

So camera height doesnt actually matter since the photographer could be on a roof, on on a tripod when below ground, aslong as the center point is on the horizon.

Example attached (Boco Pano, Greg Zaal, Peter Guthrie)

23
Pretty sure the real question here is, Beanz, why do you have a green/yellow cursor?

24
Good to hear, enjoy Tom :)

25
No worries, let me know if it still doesnt behave correctly after removing the MultiMap

26
It looks like your diffuse doesn't have a color correct node. In the instructions it mentions:
5. Vegetation Tools - To use 'Translucency' you must already have Diffuse - Color Correct.

In your case it looks like you have a Mix node or something between the Diffuse and Material, it wont work unless its a Color Correct node.

Remember selected geometry takes priority over selected materials so check your selection before you run the script.

27
Bump seems much stronger in your C4D version than in 3ds Max. At first i thought that maybe it's because of wrong gamma, but since you're not using normal maps, but rather old fashioned bump maps, that should not be the case. I never used C4d, so i can't possibly know that, but maybe 1.0 bump in 3ds Max does not equal to 100% in C4D? Also, do you use Corona bitmaps in both DCCs?

1.0 bump in 3dsmax = 100 in c4d. so when I look at his fabric material at 0.7 in 3dsmax it should be 70% in c4d, which it appears to be.

28
For example, a really rough quick render of one of my models in c4d and 3dsmax, same 255 white lighting environment, same materials. Attached

29
Materials look fine to me. How are you matching your lighting? I can see your backdrop, highlights/shadows look different. Can you just render both with the same light, a skylight with 255 white light. Does it still look different?


30
In regards to my comment about Vray conversion, I wasn't talking about you converting it I was referring to how Cosmos converted it, if that's the case.

Where are the material settings? Most of these screenshots are irrelevant. Check the attached images. You should show both for 3dsmax/c4d. bump/normal settings may be different between the two if Cosmos didn't interpret them correctly, they should be 1.0 or 100%, not 0.3 or 30% if that's the case.

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